Village of Oak Creek, near Sedona, Coconino County, Arizona, USA September 7, 2017
IMO, this appears to be 'Baird's' Old world Swallowtail (Papilio machaon bairdi). I'm basing this mostly on the lack of orange on the underside along the forewing large spots. I can't see the topside black spot clearly in any photographs. This swallowtail was in a constant state of movement with wings beating while it nectared. Can't rule out Black Swallowtail (Papilio polyxenes) in Arizona. I think a rare sighting of Anise in Arizona is unlikely in this case.